Originally Posted by crockett

Any new site I make uses a warning page on the index's. I still have a few old sites that don't have them, but I'm in the process of moving them behind warning pages. It's just hard to move sites that have established trades and SE traffic with good listings.

There may not be any laws right now but I can't see how a warning page could hurt. I don't force the warning page to trades or bookmarkers it's just for direct index traffic. It's nothing that would protect you but at least you can show that you at least tried to warn people.